DERIVATIVES AND HEDGING (Details)		1 Months Ended	3 Months Ended		9 Months Ended
		Feb. 29, 2020 USD ($) contract	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Derivative [Line Items]
Gain on foreign currency translation adjustments recognized in AOCI	[1]		$ 75,200,000	$ (131,900,000)	$ (109,100,000)	$ (120,600,000)
Number of derivative instruments held | contract		2
Unrealized loss on foreign currency adjustments			$ 26,400,000
Cross Currency Swap Contract
Derivative [Line Items]
Notional amount		$ 400,000,000.0
Gain on foreign currency translation adjustments recognized in AOCI		11,800,000		$ 13,900,000		$ 8,900,000
Unrealized loss on foreign currency adjustments					$ 37,100,000
Euro Cross Currency Swap 1
Derivative [Line Items]
Notional amount		500,000,000.0
Euro Cross Currency Swap 2
Derivative [Line Items]
Notional amount		$ 244,000,000.0

[1] The three months ended September 30, 2020 includes unrealized losses of $(26.3) million, net of taxes of $8.7 million, related to net investment hedges. The three months ended September 30, 2019 includes unrealized gains of $13.9 million, net of taxes of $(4.6) million, related to net investment hedges. The nine months ended September 30, 2020 includes unrealized losses of $(26.4) million, net of taxes of $8.7 million, related to net investment hedges. The nine months ended September 30, 2019 includes unrealized gains of $8.9 million, net of taxes of $(2.9) million, related to net investment hedges. See Note 12 for additional information.